Kosianka Leśna

Kosianka Leśna is a village in the administrative district of Gmina Grodzisk, within Siemiatycze County, Podlaskie Voivodeship, in north-eastern Poland. It lies approximately 2 km west of Grodzisk, 20 km north-west of Siemiatycze, and 67 km south-west of the regional capital Białystok.